My gtf has been acting strangely lately. He is very non active and does not climb on the branches or hop or jump or do much of anything. He just sits on the bottom of the tank. I've only had him for 2 weeks, but up until 2 days ago he was active at night, eating and soaking in his water. Now he does nothing and has very shallow breathing. He moves a little, but I'm very worried and I believe he may die. Any advice would really help. I don't want the little guy to die.